| 摘要 |
According to the machine tool (10) according to the present invention, a top-bottom guide (28) is attached to a back surface of a base frame (12). By being guided by this top-bottom guide (28), the lifter (21) moves in the top-bottom direction with respect to the base frame (12). A drive source (30) which drives rotation of a top-bottom feed screw (35) which extends parallel to the top-bottom guide (28) is attached to a back surface of the base frame (12). This drive source (30) is coupled with a bottom end of the top-bottom feed screw (35). As a result, compared to when the drive source (30) is coupled with a top end of the top-bottom feed screw (35), the center of gravity of the machine tool (10) can be set to a lower position. In this way, a machine tool (10) can be increased in stability. The precision of machining in the machine tool (10) can be improved. In addition, the drive source (30) need not be arranged at the top end of the machine tool (10), so the overall height of the machine tool (10) can be made smaller. |
